core: rename GcContext to StringContext; improve ergonomics

- Rename `borrow_gc()` methods to `strings_mut()`.
- Rename `context.interner` to `context.strings`.
- Add `Activation::strings()` convenience method.
- Take a `StringContext` instead of a `&mut StringContext`
  in most methods.

core/src/avm1/activation.rs

@@ -7,13 +7,13 @@ use crate::avm1::runtime::skip_actions;
 use crate::avm1::scope::{Scope, ScopeClass};
 use crate::avm1::{fscommand, globals, scope, ArrayObject, ScriptObject, Value};
 use crate::backend::navigator::{NavigationMethod, Request};
-use crate::context::UpdateContext;
+use crate::context::{StringContext, UpdateContext};
 use crate::display_object::{
     DisplayObject, DisplayObjectContainer, MovieClip, TDisplayObject, TDisplayObjectContainer,
 };
 use crate::ecma_conversions::{f64_to_wrapping_i32, f64_to_wrapping_u32};
 use crate::loader::MovieLoaderVMData;
-use crate::string::{AvmString, SwfStrExt as _, WStr, WString};
+use crate::string::{AvmString, AvmStringInterner, SwfStrExt as _, WStr, WString};
 use crate::tag_utils::SwfSlice;
 use crate::vminterface::Instantiator;
 use crate::{avm_error, avm_warn};
@@ -243,6 +243,14 @@ impl<'a, 'gc> Activation<'a, 'gc> {
         self.context.gc_context
     }
 
+    pub fn strings(&self) -> &AvmStringInterner<'gc> {
+        self.context.strings
+    }
+
+    pub fn strings_mut(&mut self) -> StringContext<'_, 'gc> {
+        self.context.strings_mut()
+    }
+
     #[allow(clippy::too_many_arguments)]
     pub fn from_action(
         context: &'a mut UpdateContext<'gc>,
@@ -868,7 +876,7 @@ impl<'a, 'gc> Activation<'a, 'gc> {
             .iter()
             .map(|s| {
                 self.context
-                    .interner
+                    .strings
                     .intern_wstr(self.context.gc_context, s.decode(self.encoding()))
                     .into()
             })

core/src/avm1/globals.rs

@@ -4,7 +4,7 @@ use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::property::Attribute;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Object, ScriptObject, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::display_object::{DisplayObject, TDisplayObject, TDisplayObjectContainer};
 use crate::string::{AvmString, WStr, WString};
 use gc_arena::Collect;
@@ -518,7 +518,7 @@ pub struct SystemPrototypes<'gc> {
 
 /// Initialize default global scope and builtins for an AVM1 instance.
 pub fn create_globals<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
 ) -> (
     SystemPrototypes<'gc>,
     Object<'gc>,
@@ -1207,7 +1207,7 @@ mod tests {
     use super::*;
 
     fn setup<'gc>(activation: &mut Activation<'_, 'gc>) -> Object<'gc> {
-        create_globals(&mut activation.context.borrow_gc()).1
+        create_globals(&mut activation.strings_mut()).1
     }
 
     test_method!(boolean_function, "Boolean", setup,

core/src/avm1/globals/accessibility.rs

@@ -5,7 +5,7 @@ use crate::avm1::error::Error;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Object, ScriptObject, Value};
 use crate::avm1_stub;
-use crate::context::GcContext;
+use crate::context::StringContext;
 
 const OBJECT_DECLS: &[Declaration] = declare_properties! {
     "isActive" => method(is_active; DONT_DELETE | READ_ONLY);
@@ -41,7 +41,7 @@ pub fn update_properties<'gc>(
 }
 
 pub fn create_accessibility_object<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/array.rs

@@ -6,7 +6,7 @@ use crate::avm1::error::Error;
 use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{ArrayObject, Object, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::ecma_conversions::f64_to_wrapping_i32;
 use crate::string::AvmString;
 use bitflags::bitflags;
@@ -62,7 +62,7 @@ const OBJECT_DECLS: &[Declaration] = declare_properties! {
 };
 
 pub fn create_array_object<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     array_proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {
@@ -743,7 +743,7 @@ fn qsort<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/as_broadcaster.rs

@@ -7,7 +7,7 @@ use crate::avm1::object::TObject;
 use crate::avm1::property::Attribute;
 use crate::avm1::property_decl::Declaration;
 use crate::avm1::{Activation, ArrayObject, Object, ScriptObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::string::AvmString;
 use gc_arena::{Collect, Mutation};
 
@@ -19,7 +19,7 @@ const OBJECT_DECLS: &[Declaration] = declare_properties! {
 };
 
 pub fn create<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> (BroadcasterFunctions<'gc>, Object<'gc>) {

core/src/avm1/globals/bevel_filter.rs

@@ -4,7 +4,7 @@ use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::object::NativeObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Activation, Error, Object, ScriptObject, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::string::{AvmString, WStr};
 use gc_arena::{Collect, GcCell, Mutation};
 use std::ops::Deref;
@@ -533,7 +533,7 @@ fn method<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {
@@ -543,7 +543,7 @@ pub fn create_proto<'gc>(
 }
 
 pub fn create_constructor<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/bitmap_data.rs

@@ -12,7 +12,7 @@ use crate::bitmap::bitmap_data::{BitmapDataDrawError, IBitmapDrawable};
 use crate::bitmap::bitmap_data::{ChannelOptions, ThresholdOperation};
 use crate::bitmap::{is_size_valid, operations};
 use crate::character::Character;
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::display_object::DisplayObject;
 use crate::swf::BlendMode;
 use crate::{avm1_stub, avm_error};
@@ -1522,7 +1522,7 @@ fn load_bitmap<'gc>(
 }
 
 pub fn create_constructor<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: ScriptObject<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/bitmap_filter.rs

@@ -13,7 +13,7 @@ use crate::avm1::globals::gradient_filter::GradientFilter;
 use crate::avm1::object::NativeObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Attribute, Object, ScriptObject, TObject, Value};
-use crate::context::{GcContext, UpdateContext};
+use crate::context::{StringContext, UpdateContext};
 use ruffle_render::filters::Filter;
 
 const PROTO_DECLS: &[Declaration] = declare_properties! {
@@ -194,7 +194,7 @@ pub fn create_instance<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/blur_filter.rs

@@ -4,7 +4,7 @@ use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::object::NativeObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Activation, Error, Object, ScriptObject, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use gc_arena::{Collect, GcCell, Mutation};
 use std::ops::Deref;
 use swf::{BlurFilterFlags, Fixed16};
@@ -186,7 +186,7 @@ fn method<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {
@@ -196,7 +196,7 @@ pub fn create_proto<'gc>(
 }
 
 pub fn create_constructor<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/boolean.rs

@@ -6,7 +6,7 @@ use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::object::value_object::ValueObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Object, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::string::AvmString;
 
 const PROTO_DECLS: &[Declaration] = declare_properties! {
@@ -46,7 +46,7 @@ pub fn boolean_function<'gc>(
 }
 
 pub fn create_boolean_object<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     boolean_proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {
@@ -61,7 +61,7 @@ pub fn create_boolean_object<'gc>(
 
 /// Creates `Boolean.prototype`.
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/button.rs

@@ -8,7 +8,7 @@ use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::ArrayObject;
 use crate::avm1::{globals, Object, ScriptObject, TObject, Value};
 use crate::avm1_stub;
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::display_object::{Avm1Button, TDisplayObject, TInteractiveObject};
 use crate::string::AvmString;
 
@@ -52,7 +52,7 @@ const PROTO_DECLS: &[Declaration] = declare_properties! {
 };
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/color.rs

@@ -8,7 +8,7 @@ use crate::avm1::error::Error;
 use crate::avm1::property::Attribute;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Object, ScriptObject, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::display_object::{DisplayObject, TDisplayObject};
 
 use swf::Fixed8;
@@ -38,7 +38,7 @@ pub fn constructor<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/color_matrix_filter.rs

@@ -4,7 +4,7 @@ use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::object::NativeObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Activation, ArrayObject, Error, Object, ScriptObject, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use gc_arena::{Collect, GcCell, Mutation};
 use std::ops::Deref;
 
@@ -158,7 +158,7 @@ fn method<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {
@@ -168,7 +168,7 @@ pub fn create_proto<'gc>(
 }
 
 pub fn create_constructor<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/color_transform.rs

@@ -3,7 +3,7 @@
 use crate::avm1::object::NativeObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Activation, Error, Object, ScriptObject, TObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::string::AvmString;
 use gc_arena::{Collect, GcCell};
 use swf::{ColorTransform, Fixed8};
@@ -265,7 +265,7 @@ fn concat<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/context_menu.rs

@@ -4,7 +4,7 @@ use crate::avm1::object::TObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::Object;
 use crate::avm1::{ScriptObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::context_menu;
 use crate::display_object::DisplayObject;
 
@@ -142,7 +142,7 @@ pub fn hide_builtin_items<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/context_menu_item.rs

@@ -4,7 +4,7 @@ use crate::avm1::object::TObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::Object;
 use crate::avm1::{ScriptObject, Value};
-use crate::context::GcContext;
+use crate::context::StringContext;
 use crate::string::AvmString;
 
 const PROTO_DECLS: &[Declaration] = declare_properties! {
@@ -90,7 +90,7 @@ pub fn copy<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {

core/src/avm1/globals/convolution_filter.rs

@@ -5,7 +5,7 @@ use crate::avm1::function::{Executable, FunctionObject};
 use crate::avm1::object::NativeObject;
 use crate::avm1::property_decl::{define_properties_on, Declaration};
 use crate::avm1::{Activation, ArrayObject, Error, Object, ScriptObject, TObject, Value};
-use crate::context::{GcContext, UpdateContext};
+use crate::context::{StringContext, UpdateContext};
 use gc_arena::{Collect, GcCell, Mutation};
 use std::ops::Deref;
 use swf::{Color, ConvolutionFilterFlags};
@@ -408,7 +408,7 @@ fn method<'gc>(
 }
 
 pub fn create_proto<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {
@@ -418,7 +418,7 @@ pub fn create_proto<'gc>(
 }
 
 pub fn create_constructor<'gc>(
-    context: &mut GcContext<'_, 'gc>,
+    context: &mut StringContext<'_, 'gc>,
     proto: Object<'gc>,
     fn_proto: Object<'gc>,
 ) -> Object<'gc> {