Exclude sdkMemberVersionedDepTag from visibility enforcement

The implicit dependency from an unversioned sdk member to the snapshot
versions should be excluded from visibility enforcement as it provides
no benefit and would require snapshot members to be visible to their
original source modules which would complicate visibility handling.

Also, corrects a spelling mistake in sdkMemberVersionedDepTag.

Bug: 142940300
Test: m nothing
Change-Id: Ib7ea6a3d3904d042dca0ea12f6b9196d40de970b
diff --git a/sdk/sdk.go b/sdk/sdk.go
index 44e5cbb..3b0752f 100644
--- a/sdk/sdk.go
+++ b/sdk/sdk.go
@@ -285,12 +285,15 @@
 
 // For dependencies from an in-development version of an SDK member to frozen versions of the same member
 // e.g. libfoo -> libfoo.mysdk.11 and libfoo.mysdk.12
-type sdkMemberVesionedDepTag struct {
+type sdkMemberVersionedDepTag struct {
 	dependencyTag
 	member  string
 	version string
 }
 
+// Mark this tag so dependencies that use it are excluded from visibility enforcement.
+func (t sdkMemberVersionedDepTag) ExcludeFromVisibilityEnforcement() {}
+
 // Step 1: create dependencies from an SDK module to its members.
 func memberMutator(mctx android.BottomUpMutatorContext) {
 	if s, ok := mctx.Module().(*sdk); ok {
@@ -337,7 +340,7 @@
 	if m, ok := mctx.Module().(android.SdkAware); ok && m.IsInAnySdk() {
 		if !m.ContainingSdk().Unversioned() {
 			memberName := m.MemberName()
-			tag := sdkMemberVesionedDepTag{member: memberName, version: m.ContainingSdk().Version}
+			tag := sdkMemberVersionedDepTag{member: memberName, version: m.ContainingSdk().Version}
 			mctx.AddReverseDependency(mctx.Module(), tag, memberName)
 		}
 	}