Subzero: switch from llvm-objdump to objdump for lit tests (for LLVM merge)

tests_lit/llvm2ice_tests/fpcall.ll

 ; Test that for calls returning a floating-point value, the calling
 ; ABI with respect to the x87 floating point stack is honored.  In
 ; particular, the top-of-stack must be popped regardless of whether
 ; its value is used.
 
-; RUN: %p2i -i %s --args -O2 --verbose none \
-; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
-; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
-; RUN: %p2i -i %s --args -Om1 --verbose none \
-; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
-; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
+; RUN: %p2i --assemble --disassemble -i %s --args -O2 --verbose none \
+; RUN:   | FileCheck %s
+; RUN: %p2i --assemble --disassemble -i %s --args -Om1 --verbose none \
+; RUN:   | FileCheck %s
 
 define float @dummy() {
 entry:
   ret float 0.000000e+00
 }
 ; CHECK-LABEL: dummy
 
 ; The call is ignored, but the top of the FP stack still needs to be
 ; popped.
 define i32 @ignored_fp_call() {
 entry:
   %ignored = call float @dummy()
   ret i32 0
 }
 ; CHECK-LABEL: ignored_fp_call
-; CHECK: call dummy
+; CHECK: call 
+; CHECK-NEXT: R_{{.*}} dummy
 ; CHECK: fstp
 
 ; The top of the FP stack is popped and subsequently used.
 define i32 @converted_fp_call() {
 entry:
   %fp = call float @dummy()
   %ret = fptosi float %fp to i32
   ret i32 %ret
 }
 ; CHECK-LABEL: converted_fp_call
-; CHECK: call dummy
+; CHECK: call 
+; CHECK-NEXT: R_{{.*}} dummy
 ; CHECK: fstp
 ; CHECK: cvttss2si
 
 ; The top of the FP stack is ultimately passed through as the return
 ; value.  Note: the translator could optimized by not popping and
 ; re-pushing, in which case the test would need to be changed.
 define float @returned_fp_call() {
 entry:
   %fp = call float @dummy()
   ret float %fp
 }
 ; CHECK-LABEL: returned_fp_call
-; CHECK: call dummy
+; CHECK: call 
+; CHECK-NEXT: R_{{.*}} dummy
 ; CHECK: fstp
 ; CHECK: fld