[gn build] Port e83e53b

Author: nico

llvm/utils/gn/secondary/llvm/unittests/MC/AMDGPU/BUILD.gn

@@ -5,8 +5,10 @@ unittest("AMDGPUMCTests") {
     "//llvm/lib/CodeGen",
     "//llvm/lib/IR",
     "//llvm/lib/MC",
+    "//llvm/lib/MC/MCDisassembler",
     "//llvm/lib/Support",
     "//llvm/lib/Target/AMDGPU:LLVMAMDGPUCodeGen",
+    "//llvm/lib/Target/AMDGPU/Disassembler",
     "//llvm/lib/Target/AMDGPU/MCTargetDesc",
     "//llvm/lib/Target/AMDGPU/TargetInfo",
     "//llvm/lib/TargetParser",
@@ -22,5 +24,8 @@ unittest("AMDGPUMCTests") {
 
   # AMDGPUMCTests heavily reaches into lib/Target/AMDGPU internals.
   include_dirs = [ "//llvm/lib/Target/AMDGPU" ]
-  sources = [ "DwarfRegMappings.cpp" ]
+  sources = [
+    "Disassembler.cpp",
+    "DwarfRegMappings.cpp",
+  ]
 }