gopls/internal/test/integration/misc: only test asm on {arm,amd}64

Fixes golang/go#71956    for real this time

Change-Id: I3db07168da163ea6c8fdeefda28f64b94fe2ed57
Reviewed-on: https://go-review.googlesource.com/c/tools/+/652695
Reviewed-by: Robert Findley <rfindley@google.com>
Commit-Queue: Alan Donovan <adonovan@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Alan Donovan <adonovan@google.com>

Author: adonovan

gopls/internal/test/integration/misc/webserver_test.go

@@ -604,18 +604,24 @@ func init() {
 		// Check that code in a package-level var initializer is found too.
 		{
 			report := asmFor(`f\(123\)`)
-			checkMatch(t, true, report, `TEXT.*example.com/a.init`)
-			checkMatch(t, true, report, `MOV.?	\$123`)
-			checkMatch(t, true, report, `MOV.?	\$456`)
-			checkMatch(t, true, report, `CALL	example.com/a.f`)
+			switch runtime.GOARCH {
+			case "amd64", "arm64":
+				checkMatch(t, true, report, `TEXT.*example.com/a.init`)
+				checkMatch(t, true, report, `MOV.?	\$123`)
+				checkMatch(t, true, report, `MOV.?	\$456`)
+				checkMatch(t, true, report, `CALL	example.com/a.f`)
+			}
 		}
 
 		// And code in a source-level init function.
 		{
 			report := asmFor(`f\(789\)`)
-			checkMatch(t, true, report, `TEXT.*example.com/a.init`)
-			checkMatch(t, true, report, `MOV.?	\$789`)
-			checkMatch(t, true, report, `CALL	example.com/a.f`)
+			switch runtime.GOARCH {
+			case "amd64", "arm64":
+				checkMatch(t, true, report, `TEXT.*example.com/a.init`)
+				checkMatch(t, true, report, `MOV.?	\$789`)
+				checkMatch(t, true, report, `CALL	example.com/a.f`)
+			}
 		}
 	})
 }