[llvm] [AMDGPU][True16][MC] add fake16 error and promote test (PR #135984)

[Ivan Kosarev via llvm-commits]

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@@ -1,89 +0,0 @@
-// RUN: not llvm-mc -triple=amdgcn -mcpu=gfx1100 -mattr=-real-true16,+wavefrontsize32 -show-encoding %s 2>&1 | FileCheck --check-prefix=GFX11 --implicit-check-not=error: %s
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kosarev wrote:

Why do we rename this to gfx11_asm_vop1_fake16_err.s? The convention seems to be adding the `-fake16` suffix to whatever is the name of the non-fake16 version of the test?

https://github.com/llvm/llvm-project/pull/135984