[GR-64086] Add extended dynamic object layout. #11188
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Add missing override annotations. Remove unused code. Minor code simplifications.
Adapt UnsafeAccess to package refactoring. Invert dynamic object implementation project dependency.
Adapt SVM substitutions to refactoring.
…ure. Move resetNativeImageState() to DynamicObjectFeature.
…fleRuntime methods.
Remove DynamicObject accessor used for service provider lookup.
Simplify LayoutFactory.createShape.
Remove obsolete internal "since" tags.
Remove unnecessary SuppressWarnings("deprecation").
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Adds extended Dynamic Object Model Layout that adds:
* A shape obsolescence strategy enabling optimistic type speculation for primitive property values with gradual migration to more general shapes on speculation failure (moving primitive slots to reference slots), eventually converging on a general enough shape tree. Reduces shape polymorphism by obsoleting and merging too specific shapes in favor of more general shapes.
* Automatic reference type tracking based on assumptions, eliminating redundant type checks.
* Automatic single-assignment tracking based on assumptions allowing languages to assume that a property is effectively final (i.e. stays unchanged after the initial assignment) as well as constant-fold values of a constant receiver with a known shape.
* You can still disable the new layout and switch back to the previous implementation using the system property:
-Dtruffle.object.LayoutFactory=com.oracle.truffle.api.object.CoreLayoutFactory.