[lld] Remove 2>&1 from --trace-symbol tests

[sbc100]

Summary

The tracing goes to stdout so this is not needed.

Also remove the "not" from the final check in ELF/trace-symbols.s.
According the comment the check is that we don't crash, so we should
be checking for success here. Previously this step is erroring with
undefined symbols because it didn't include all the needed objects.

[sbc100]

• Fix special symbol crash

[ruiu]

LGTM

test/ELF/trace-symbols.s

 # REQUIRES: x86
 # Test -y symbol and -trace-symbol=symbol
 
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
 # RUN: %p/Inputs/trace-symbols-foo-weak.s -o %t1
 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux \
 # RUN: %p/Inputs/trace-symbols-foo-strong.s -o %t2
 # RUN: ld.lld -shared %t1 -o %t1.so
 # RUN: ld.lld -shared %t2 -o %t2.so
 # RUN: rm -f %t1.a
 # RUN: llvm-ar rcs %t1.a %t1
 # RUN: rm -f %t2.a
 # RUN: llvm-ar rcs %t2.a %t2
 
 # RUN: ld.lld -y foo -trace-symbol common -trace-symbol=hsymbol \
-# RUN:   %t %t1 %t2 -o %t3 2>&1 | FileCheck -check-prefix=OBJECTRFOO %s
+# RUN:   %t %t1 %t2 -o %t3 | FileCheck -check-prefix=OBJECTRFOO %s
 # OBJECTRFOO: trace-symbols.s.tmp: reference to foo
 
 # RUN: ld.lld -y foo -trace-symbol=common -trace-symbol=hsymbol \
-# RUN:   %t %t1 %t2 -o %t3 2>&1 | FileCheck -check-prefix=OBJECTDCOMMON %s
+# RUN:   %t %t1 %t2 -o %t3 | FileCheck -check-prefix=OBJECTDCOMMON %s
 # OBJECTDCOMMON: trace-symbols.s.tmp1: common definition of common
 
 # RUN: ld.lld -y foo -trace-symbol=common -trace-symbol=hsymbol \
-# RUN:   %t %t1 %t2 -o %t3 2>&1 | FileCheck -check-prefix=OBJECTD1FOO %s
+# RUN:   %t %t1 %t2 -o %t3 | FileCheck -check-prefix=OBJECTD1FOO %s
 # OBJECTD1FOO: trace-symbols.s.tmp: reference to foo
 # OBJECTD1FOO: trace-symbols.s.tmp1: common definition of common
 # OBJECTD1FOO: trace-symbols.s.tmp1: definition of foo
 # OBJECTD1FOO: trace-symbols.s.tmp2: definition of foo
 
 # RUN: ld.lld -y foo -trace-symbol=common -trace-symbol=hsymbol \
-# RUN:   %t %t1 %t2 -o %t3 2>&1 | FileCheck -check-prefix=OBJECTD2FOO %s
+# RUN:   %t %t1 %t2 -o %t3 | FileCheck -check-prefix=OBJECTD2FOO %s
 # RUN: ld.lld -y foo -y common --trace-symbol=hsymbol \
-# RUN:   %t %t2 %t1 -o /dev/null 2>&1 | FileCheck -check-prefix=OBJECTD2FOO %s
-# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 2>&1 | \
+# RUN:   %t %t2 %t1 -o /dev/null | FileCheck -check-prefix=OBJECTD2FOO %s
+# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 | \
 # RUN:   FileCheck -check-prefix=OBJECTD2FOO %s
 # OBJECTD2FOO: trace-symbols.s.tmp2: definition of foo
 
-# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 2>&1 | \
+# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 | \
 # RUN:   FileCheck -check-prefix=FOO_AND_COMMON %s
 # FOO_AND_COMMON: trace-symbols.s.tmp: reference to foo
 # FOO_AND_COMMON: trace-symbols.s.tmp2: definition of foo
 # FOO_AND_COMMON: trace-symbols.s.tmp1.a: lazy definition of common
 
-# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 2>&1 | \
+# RUN: ld.lld -y foo -y common %t %t1.so %t2 -o %t3 | \
 # RUN:   FileCheck -check-prefix=SHLIBDCOMMON %s
 # SHLIBDCOMMON: trace-symbols.s.tmp1.so: shared definition of common
 
-# RUN: ld.lld -y foo -y common %t %t2.so %t1.so -o %t3 2>&1 | \
+# RUN: ld.lld -y foo -y common %t %t2.so %t1.so -o %t3 | \
 # RUN:   FileCheck -check-prefix=SHLIBD2FOO %s
 # RUN: ld.lld -y foo %t %t1.a %t2.so -o %t3 | \
 # RUN:   FileCheck -check-prefix=NO-SHLIBD2FOO %s
 # SHLIBD2FOO:        trace-symbols.s.tmp2.so: shared definition of foo
 # NO-SHLIBD2FOO-NOT: trace-symbols.s.tmp2.so: definition of foo
 
-# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 2>&1 | \
+# RUN: ld.lld -y foo -y common %t %t2 %t1.a -o %t3 | \
 # RUN:   FileCheck -check-prefix=ARCHIVEDCOMMON %s
 # ARCHIVEDCOMMON-NOT: trace-symbols.s.tmp1.a(trace-symbols.s.tmp1): definition of \
 # common
 
 # RUN: ld.lld -y foo %t %t1.a %t2.so -o %t3 | \
 # RUN:   FileCheck -check-prefix=ARCHIVED1FOO %s
 # ARCHIVED1FOO: trace-symbols.s.tmp1.a(trace-symbols.s.tmp1): definition of foo
 

 # RUN:   FileCheck -check-prefix=SHLIBRBAR %s
 # SHLIBRBAR: trace-symbols.s.tmp1.so: reference to bar
 
 # RUN: ld.lld -y foo -y bar %t -u bar --start-lib %t1 %t2 --end-lib -o %t3 | \
 # RUN:   FileCheck -check-prefix=STARTLIB %s
 # STARTLIB: trace-symbols.s.tmp1: reference to bar
 
 ## Check we do not crash when trying to trace special symbol.
-# RUN: not ld.lld -trace-symbol=_end %t -o /dev/null
+# RUN: ld.lld -trace-symbol=_end %t %t1 %t2 -o /dev/null
 
 .hidden hsymbol
 .globl  _start
 .type _start, @function
 _start:
 call foo

test/wasm/trace-symbol.ll

 ; RUN: llc -filetype=obj %p/Inputs/ret32.ll -o %t.ret32.o
 ; RUN: llc -filetype=obj -o %t.o %s
-; RUN: wasm-ld -o %t.wasm %t.o %t.ret32.o -y ret32 -y _start 2>&1 | FileCheck %s -check-prefix=BOTH
+; RUN: wasm-ld -o %t.wasm %t.o %t.ret32.o -y ret32 -y _start | FileCheck %s -check-prefix=BOTH
 
 ; check alias
-; RUN: wasm-ld -o %t.wasm %t.o %t.ret32.o -trace-symbol=_start 2>&1 | FileCheck %s -check-prefixes=JUST-START
+; RUN: wasm-ld -o %t.wasm %t.o %t.ret32.o -trace-symbol=_start | FileCheck %s -check-prefixes=JUST-START
 
 target triple = "wasm32-unknown-unknown"
 
 declare i32 @ret32(float %arg)
 
 define void @_start() {
 entry:
   %call1 = call i32 @ret32(float 0.0)