llvm-project

8e4dd21e - [HLSL][RootSignature] Add lexing support for floating points (#137720)

[HLSL][RootSignature] Add lexing support for floating points (#137720) - this takes care to add support to match the [behaviour of DXC](https://github.com/microsoft/DirectXShaderCompiler/blob/34b6d0f91e6afd523bdc574836093f021713cce7/tools/clang/lib/Parse/HLSLRootSignature.cpp#L74) acceptable floating point integers Namely: - Allow for specifying the decimal '.' - Allow for specifying exponents with 'e' or 'E' and allow for 'f' to denote an otherwise interpreted integer as a float This pr is simply responsible of creating a token that could be interpeted as a floating point integer by `NumericLiteralParser`. As such, we are not required to validate that the special characters only occur once and that 'f' is only at the end of the string. These will be validated when invoking `NumericLiteralParser` during parsing. Resolves #126565