glsl/ir: remove TABs in ir_constant_expression.cpp
glsl/ir: remove TABs in ir_constant_expression.cpp

Adding 64-bit integers support was going to make this file worse,
just remove the tabs from it now.

Acked-by: Timothy Arceri <5dd83789ef3714029244367ba1ca09f1d7627408@collabora.com>
Signed-off-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler