[WebAssembly] Fixed objdump not parsing function headers.
[WebAssembly] Fixing 2 more symbol offset related tests.
Fixed hasLinkerPrivateGlobalPrefix treating StringRef as C String.
[WebAssembly] Make segment/size/type directives optional in asm
[WebAssembly] Make disassembler always emit most canonical name.
[WebAssembly] Fixed Disassembler ignoring endian swap on big endian.
[WebAssembly] Fixed disassembler not knowing about OPERAND_EVENT
[WebAssembly] Add support for data sections in the assembler.