[WebAssembly] Allow each data segment to specify its own alignment

Also, add a flags field as we will almost certainly
be needing that soon too.

Differential Revision: https://reviews.llvm.org/D38296

llvm-svn: 314534
diff --git a/llvm/test/MC/WebAssembly/array-fill.ll b/llvm/test/MC/WebAssembly/array-fill.ll
index 38274c3..e2f337a 100644
--- a/llvm/test/MC/WebAssembly/array-fill.ll
+++ b/llvm/test/MC/WebAssembly/array-fill.ll
@@ -15,8 +15,9 @@
 ; CHECK:        - Type:            CUSTOM
 ; CHECK-NEXT:     Name:            linking
 ; CHECK-NEXT:     DataSize:        2
-; CHECK-NEXT:     DataAlignment:   1
-; CHECK-NEXT:     SegmentNames:    
+; CHECK-NEXT:     SegmentInfo:    
 ; CHECK-NEXT:       - Index:           0
 ; CHECK-NEXT:         Name:            .data
+; CHECK-NEXT:         Alignment:       1
+; CHECK-NEXT:         Flags:           0
 ; CHECK-NEXT: ...