[llvm-symbolizer][test] Rename and tweak tests using llvm-symbolizer

Prior to this change, there are a few tests called llvm-symbolizer* in
the DebugInfo test area. These really were testing either the DebugInfo
or Symbolizer library, rather than the llvm-symbolizer tool itself, so
this patch renames them to be clearer that they aren't explicitly tests
for llvm-symbolizer (such tests belong in test/tools/llvm-symbolizer).

This patch also reinstates the copying of a DWO file, removed previously
in r352752. The test needs this so that it could possibly fail.

Finally, some of the tests have been simplified slightly by removing
unnecessary switches and/or unused check-prefixes.

Reviewed by: dblaikie

Differential Revision: https://reviews.llvm.org/D57518

llvm-svn: 352847

llvm/test/DebugInfo/llvm-symbolizer-split-dwarf-empty.test

@@ -1,10 +0,0 @@
-RUN: rm -rf %t && mkdir -p %t
-RUN: cd %t
-RUN: cp %p/Inputs/split-dwarf-empty.dwo %t
-RUN: echo "%p/Inputs/split-dwarf-empty.o 0xdeadbeef" > %t.input
-
-RUN: llvm-symbolizer --functions=linkage --inlining --demangle=false \
-RUN:    --default-arch=i386 < %t.input | FileCheck %s
-
-CHECK: ??
-CHECK: ??:0:0

llvm/test/DebugInfo/symbolize-split-dwarf-empty.test

@@ -0,0 +1,9 @@
+cd and copy the DWO into the same directory so that it can be found by the
+symbolizer.
+RUN: rm -rf %t && mkdir -p %t
+RUN: cd %t
+RUN: cp %p/Inputs/split-dwarf-empty.dwo %t
+RUN: llvm-symbolizer --inlining --obj=%p/Inputs/split-dwarf-empty.o 0xdeadbeef | FileCheck %s
+
+CHECK: ??
+CHECK: ??:0:0

llvm/test/DebugInfo/symbolize-split-dwarf-no-skel-address.test

@@ -1,5 +1,10 @@
-RUN: llvm-symbolizer --functions=linkage --inlining --demangle=false \
-RUN:    --default-arch=i386 --obj=%p/Inputs/split-dwarf-no-skel-address.o 0x4 | FileCheck %s
+Copy the DWO and then cd into the output directory, so that the symbolizer would
+find the DWO if it attempted to.
+RUN: rm -rf %t && mkdir -p %t
+RUN: cd %t
+RUN: cp %p/Inputs/split-dwarf-no-skel-address.dwo %t
+RUN: llvm-symbolizer --inlining --no-demangle \
+RUN:    --obj=%p/Inputs/split-dwarf-no-skel-address.o 0x4 | FileCheck %s
 
 Built from the following source:
 void f1();

llvm/test/DebugInfo/symbolize.test

@@ -6,15 +6,14 @@ RUN: echo "%p/Inputs/dwarfdump-test2.elf-x86-64 0x4004e8" >> %t.input
 RUN: echo "%p/Inputs/dwarfdump-test2.elf-x86-64 0x4004f4" >> %t.input
 RUN: echo "%p/Inputs/dwarfdump-test4.elf-x86-64 0x62c" >> %t.input
 
-RUN: llvm-symbolizer --functions=linkage --inlining --demangle=false \
-RUN:    < %t.input | FileCheck --check-prefix=CHECK --check-prefix=SPLIT --check-prefix=DWO %s
+RUN: llvm-symbolizer < %t.input | FileCheck %s
 
 CHECK:       main
 CHECK-NEXT: /tmp/dbginfo{{[/\\]}}dwarfdump-test.cc:16
 
 CHECK:      _start
 
-CHECK: _Z1fii
+CHECK:      f(int, int)
 CHECK-NEXT: /tmp/dbginfo{{[/\\]}}dwarfdump-test.cc:11
 
 CHECK:      DummyClass
@@ -26,5 +25,5 @@ CHECK-NEXT: /tmp/dbginfo{{[/\\]}}dwarfdump-test2-helper.cc:2
 CHECK:      main
 CHECK-NEXT: /tmp/dbginfo{{[/\\]}}dwarfdump-test2-main.cc:4
 
-CHECK:      _Z1cv
+CHECK:      c()
 CHECK-NEXT: /tmp/dbginfo{{[/\\]}}dwarfdump-test4-part1.cc:2