glsl: invalidate float suffixes for GLSL 1.10 and GLSL ES 1.00

glsl: invalidate float suffixes for GLSL 1.10 and GLSL ES 1.00

Float suffixes are not allowed in GLSL 1.10 nor GLSL ES 1.00.

Fixes the following piglit tests:
tests/spec/glsl-1.10/compiler/literals/invalid-float-suffix-capital-f.vert
tests/spec/glsl-1.10/compiler/literals/invalid-float-suffix-f.vert`

v2: modify error message
v3: parse the float instead of returning an ERROR_TOK
v4: (by Ken) Change to is_version(120, 300) to avoid breaking ES3
    shaders; update commit message accordingly.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81585
Signed-off-by: Lars Hamre <chemecse@gmail.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>