[HLSL] Improve HLSL resource method generation (#176806) Refactor how HLSL resource methods are constructed in HLSLBuiltinTypeDeclBuilder to be more robust and semantically correct. - Switch to using Sema::BuildCallExpr and Sema::BuildCStyleCastExpr for building builtin calls, ensuring proper type checking and AST structure. This fixes issues with non-template resources like SamplerState where AST errors aren't automatically resolved during instantiation. - Treat parameter placeholders as LValues in convertPlaceholder. This is required for builtins with 'out' parameters (e.g., GetDimensions) now that proper type checking via BuildCallExpr is performed. - Fix a bug in CreateFromBinding methods where the counter handle was assigned an incorrect handle type. - Add assertions to ensure the correct field is accessed for handles, preventing errors when implementing methods like Texture2D.Sample. - Update AST tests to reflect changes in expression value categories (VK_LValue) and the introduction of CStyleCastExpr.
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