SPIRV: Remapper: allow 64 bit literals in OperandVariableLiteralId iteration

Allowing explicit specification of shader compiltion type via -T opti…

Build: Bump required CMake version down to 2.8.11

HLSL: Put all intrinsics in common stage symbol table

Fixes issue #370 and replaces PR #371.

HLSL: add implicit promotions for assignments and function returns.

Allowing explicit specification of shader compiltion type via -T option, rather then looking at file extension. For HLSL files, this is nice because .hlsl extension is natively udnerstood by visual studio, likely to be used with the -e option.

Yield a vector relational compare and a vector result.

HLSL: disabling dx9 attempt to parse dx9 style samplers

Integrating Master into dankbaker fork

When preprocessing only, some tokens were emitted as <bad token>.
This fixes them to preserve their original content.

This supplants PR #182, with a correction and test results.

HLSL: Add GatherRed/Green/Blue/Alpha methods, inc 4-offset forms

Pull request from glslang master

HLSL: allow semicolons between global scope declarations

From the ES spec + Bugzilla 15931 and GL_KHR_vulkan_glsl:
- Update precision qualifiers for all built-in function prototypes.
- Implement the new algorithm used to distinguish built-in function
  operation precisions from result precisions.
Also add tracking of separate result and operation precisions, and
use that in generating SPIR-V.
(SPIR-V cares about precision of operation, while the front-end
cares about precision of result, for propagation.)

HLSL: Fixing some casts that warn when compiled to 64 bit (size_t is 64 bit…

bump required CMake version down to 2.8.11 since no features are required in cmake>2.8.11 and this allows building on stock CentOS 7

The sequence

  #define m()
  int m"

creates a token of no length (a string of 0 size).  Protect
against a string of 0 size as well as the existing protect
against a null string.

This would look ahead for a second #, for token pasting, and if not
found, backup one token.  This is fine, unless at the end of line,
which would backup the #, rather than the look ahead.

HLSL: allow trailing commas in initializer lists & scalar initialization