rust: Hook up InstallIn functions + Product

InstallIn functions must be hooked up not only to install to special
images, but also to receive special handling by android/arch.go such
that some images are implicitly multilib: first.

Also hook up more product details.

Bug: 178565008
Bug: 165791368
Test: lunch aosp_arm64; m
Change-Id: I1980d5aa9d55f78c222b98d60a404cd6ea5abbfb

rust/compiler.go

@@ -397,8 +397,15 @@ func (compiler *baseCompiler) installDir(ctx ModuleContext) android.InstallPath
 	}
 
 	if compiler.location == InstallInData && ctx.RustModule().UseVndk() {
-		dir = filepath.Join(dir, "vendor")
+		if ctx.RustModule().InProduct() {
+			dir = filepath.Join(dir, "product")
+		} else if ctx.RustModule().InVendor() {
+			dir = filepath.Join(dir, "vendor")
+		} else {
+			ctx.ModuleErrorf("Unknown data+VNDK installation kind")
+		}
 	}
+
 	return android.PathForModuleInstall(ctx, dir, compiler.subDir,
 		compiler.relativeInstallPath(), compiler.relative)
 }

rust/image.go

@@ -136,7 +136,13 @@ func (c *Module) VendorVariantToOdm() bool {
 }
 
 func (ctx *moduleContext) ProductSpecific() bool {
-	return false
+	return ctx.ModuleContext.ProductSpecific() || ctx.RustModule().productSpecificModuleContext()
+}
+
+func (c *Module) productSpecificModuleContext() bool {
+	// Additionally check if this module is inProduct() that means it is a "product" variant of a
+	// module. As well as product specific modules, product variants must be installed to /product.
+	return c.InProduct()
 }
 
 func (mod *Module) InRecovery() bool {

rust/rust.go

@@ -1233,6 +1233,18 @@ func (mod *Module) InstallInData() bool {
 	return mod.compiler.inData()
 }
 
+func (mod *Module) InstallInRamdisk() bool {
+	return mod.InRamdisk()
+}
+
+func (mod *Module) InstallInVendorRamdisk() bool {
+	return mod.InVendorRamdisk()
+}
+
+func (mod *Module) InstallInRecovery() bool {
+	return mod.InRecovery()
+}
+
 func linkPathFromFilePath(filepath android.Path) string {
 	return strings.Split(filepath.String(), filepath.Base())[0]
 }