Subzero: Add "-verbose init" to control global initializer dumping.

tests_lit/llvm2ice_tests/globalrelocs.ll

 ; Tests if we handle global variables with relocation initializers.
 
 ; REQUIRES: allow_dump
 
 ; Test that we handle it in the ICE converter.
 ; RUN: %lc2i -i %s --args -verbose inst -threads=0 \
 ; RUN:     | %iflc FileCheck %s
-; RUN: %lc2i -i %s --args -verbose inst -threads=0 \
+; RUN: %lc2i -i %s --args -verbose inst,init -threads=0 \
 ; RUN:     | %iflc FileCheck --check-prefix=DUMP %s
 
 ; Test that we handle it using Subzero's bitcode reader.
 ; RUN: %p2i -i %s --args -verbose inst -threads=0 \
 ; RUN:     | FileCheck %s
-; RUN: %p2i -i %s --args -verbose inst -threads=0 \
+; RUN: %p2i -i %s --args -verbose inst,init -threads=0 \
 ; RUN:     | FileCheck --check-prefix=DUMP %s
 
 @bytes = internal global [7 x i8] c"abcdefg"
 ; DUMP: @bytes = internal global [7 x i8] c"abcdefg"
 ; CHECK:        .type   bytes,%object
 ; CHECK:        .section        .data,"aw",%progbits
 ; CHECK:bytes:
 ; CHECK:        .byte   97
 ; CHECK:        .byte   98
 ; CHECK:        .byte   99
@@ skipping 231 matching lines @@
 ; CHECK:        .section        .rodata,"a",%progbits
 ; CHECK:short:
 ; CHECK:        .zero   2
 ; CHECK:        .size   short, 2
 
 define internal void @func() {
   ret void
 }
 
 ; DUMP: define internal void @func() {