Non-installable module should not be installed into a fuzzer .zip package

libicu_* fuzzer depends on installable cc modules and non-installable
cc modules with the same name, because the non-installable modules are
stubs used in the compile-time, and shouldn't be used in runtime.

Bug: 175583039
Test: make haiku dist
Test: Run 2 arbitrary binaries from out/dist/fuzz-target-x86_64.zip on device
Test: Run 2 arbitrary binaries from out/dist/fuzz-host-x86_64.zip on host
Change-Id: I0ecf24bb83e3985da3b8f393adab8c87ab7400c6
diff --git a/cc/fuzz.go b/cc/fuzz.go
index d7da5ab..9fe5b17 100644
--- a/cc/fuzz.go
+++ b/cc/fuzz.go
@@ -20,6 +20,8 @@
 	"sort"
 	"strings"
 
+	"github.com/google/blueprint/proptools"
+
 	"android/soong/android"
 	"android/soong/cc/config"
 )
@@ -172,7 +174,7 @@
 // This function takes a module and determines if it is a unique shared library
 // that should be installed in the fuzz target output directories. This function
 // returns true, unless:
-//  - The module is not a shared library, or
+//  - The module is not an installable shared library, or
 //  - The module is a header, stub, or vendor-linked library, or
 //  - The module is a prebuilt and its source is available, or
 //  - The module is a versioned member of an SDK snapshot.
@@ -209,6 +211,11 @@
 		if _, isLLndkStubLibrary := ccLibrary.linker.(*stubDecorator); isLLndkStubLibrary {
 			return false
 		}
+		// Discard installable:false libraries because they are expected to be absent
+		// in runtime.
+		if !proptools.BoolDefault(ccLibrary.Properties.Installable, true) {
+			return false
+		}
 	}
 
 	// If the same library is present both as source and a prebuilt we must pick