[WebAssembly] check more details in call-indirect test

[sbc100]

Summary

Also make function bodies unique so they can be distinguished in the output.

This change is helpful for adding support for --gc-sections.

[ruiu]

LGTM

test/wasm/call-indirect.ll

 ; RUN: llc -filetype=obj -mtriple=wasm32-unknown-uknown-wasm %p/Inputs/call-indirect.ll -o %t2.o
 ; RUN: llc -filetype=obj -mtriple=wasm32-unknown-uknown-wasm %s -o %t.o
 ; RUN: lld -flavor wasm -o %t.wasm %t2.o %t.o
 ; RUN: obj2yaml %t.wasm | FileCheck %s
 
 ; bitcode generated from the following C code:
 ; int foo(void) { return 1; }
 ; int (*indirect_func)(void) = &foo;
 ; void _start(void) { indirect_func(); }
 
 @indirect_func = local_unnamed_addr global i32 ()* @foo, align 4
 
 ; Function Attrs: norecurse nounwind readnone
 define i32 @foo() #0 {
 entry:
-  ret i32 1
+  ret i32 2
 }
 
 ; Function Attrs: nounwind
-define void @_start() local_unnamed_addr #1 {
+define i32 @_start() local_unnamed_addr #1 {
 entry:
   %0 = load i32 ()*, i32 ()** @indirect_func, align 4
   %call = tail call i32 %0() #2
-  ret void
+  ret i32 0
 }
 
 ; CHECK:      !WASM
 ; CHECK-NEXT: FileHeader:      
 ; CHECK-NEXT:   Version:         0x00000001
 ; CHECK-NEXT: Sections:        
 ; CHECK-NEXT:   - Type:            TYPE
 ; CHECK-NEXT:     Signatures:      
 ; CHECK-NEXT:       - Index:           0
 ; CHECK-NEXT:         ReturnType:      I32
 ; CHECK-NEXT:         ParamTypes:      
 ; CHECK-NEXT:       - Index:           1
 ; CHECK-NEXT:         ReturnType:      NORESULT
 ; CHECK-NEXT:         ParamTypes:      
 ; CHECK-NEXT:   - Type:            FUNCTION
-; CHECK-NEXT:     FunctionTypes:   [ 0, 1, 0, 1 ]
+; CHECK-NEXT:     FunctionTypes:   [ 0, 1, 0, 0 ]
 ; CHECK-NEXT:   - Type:            TABLE
 ; CHECK-NEXT:     Tables:          
 ; CHECK-NEXT:       - ElemType:        ANYFUNC
 ; CHECK-NEXT:         Limits:          
 ; CHECK-NEXT:           Flags:           0x00000001
 ; CHECK-NEXT:           Initial:         0x00000003
 ; CHECK-NEXT:           Maximum:         0x00000003
 ; CHECK-NEXT:   - Type:            MEMORY

 ; CHECK-NEXT:         Kind:            FUNCTION
 ; CHECK-NEXT:         Index:           2
 ; CHECK-NEXT:       - Name:            bar
 ; CHECK-NEXT:         Kind:            FUNCTION
 ; CHECK-NEXT:         Index:           0
 ; CHECK-NEXT:       - Name:            call_bar_indirect
 ; CHECK-NEXT:         Kind:            FUNCTION
 ; CHECK-NEXT:         Index:           1
-; CHECK:        - Type:            ELEM
+; CHECK-NEXT:   - Type:            ELEM
 ; CHECK-NEXT:     Segments:        
 ; CHECK-NEXT:       - Offset:          
 ; CHECK-NEXT:           Opcode:          I32_CONST
 ; CHECK-NEXT:           Value:           1
 ; CHECK-NEXT:         Functions:       [ 0, 2 ]
 ; CHECK-NEXT:   - Type:            CODE
 ; CHECK-NEXT:     Functions:       
-; CHECK:            - Locals:          
-; CHECK:            - Locals:          
-; CHECK:            - Locals:          
-; CHECK:        - Type:            DATA
+; CHECK-NEXT:       - Locals:          
+; CHECK-NEXT:         Body:            41010B
+; CHECK-NEXT:       - Locals:          
+; CHECK-NEXT:         Body:            410028028088808000118080808000001A0B
+; CHECK-NEXT:       - Locals:          
+; CHECK-NEXT:         Body:            41020B
+; CHECK-NEXT:       - Locals:          
+; CHECK-NEXT:         Body:            410028028888808000118080808000001A41000B
+; CHECK-NEXT:   - Type:            DATA
 ; CHECK-NEXT:     Segments:        
 ; CHECK-NEXT:       - SectionOffset:    7
 ; CHECK-NEXT:         MemoryIndex:      0
 ; CHECK-NEXT:         Offset:          
 ; CHECK-NEXT:           Opcode:          I32_CONST
 ; CHECK-NEXT:           Value:           1024
 ; CHECK-NEXT:         Content:         '010000000200000002000000'
 ; CHECK-NEXT:   - Type:            CUSTOM