Add fuzz target for cranelift_reader::parse_test.

cranelift/fuzz/Cargo.toml

@@ -12,6 +12,7 @@ cargo-fuzz = "*"
 binaryen = { git = "https://github.com/pepyakin/binaryen-rs.git" }
 libfuzzer-sys = { git = "https://github.com/rust-fuzz/libfuzzer-sys.git" }
 cranelift-wasm = { path = "../lib/wasm" }
+cranelift-reader = { path = "../lib/reader" }
 target-lexicon = "0.0.3"
 
 # Prevent this from interfering with workspaces
@@ -21,3 +22,7 @@ members = ["."]
 [[bin]]
 name = "fuzz_translate_module"
 path = "fuzz_translate_module.rs"
+
+[[bin]]
+name = "fuzz_reader_parse_test"
+path = "fuzz_reader_parse_test.rs"

cranelift/fuzz/fuzz_reader_parse_test.rs

@@ -0,0 +1,11 @@
+#![no_main]
+#[macro_use]
+extern crate libfuzzer_sys;
+extern crate cranelift_reader;
+use std::str;
+
+fuzz_target!(|data: &[u8]| {
+    if let Ok(s) = str::from_utf8(data) {
+        let _ = cranelift_reader::parse_test(s);
+    }
+});