Make "unicase + macros" features work

Cargo.toml

@@ -1,6 +1,7 @@
 [workspace]
 members = [
     "phf",
+    "phf/examples/unicase-example",
     "phf_codegen",
     "phf_codegen/test",
     "phf_generator",

phf/Cargo.toml

@@ -17,7 +17,7 @@ test = false
 default = ["std"]
 std = ["phf_shared/std"]
 uncased = ["phf_shared/uncased"]
-unicase = ["phf_shared/unicase"]
+unicase = ["phf_macros?/unicase", "phf_shared/unicase"]
 macros = [
     "phf_macros",
     "proc-macro-hack",

phf/examples/unicase-example/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "unicase-example"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+phf = { version = "0.10", features = ["macros", "unicase"] }
+unicase = "2"

phf/examples/unicase-example/src/main.rs

@@ -0,0 +1,9 @@
+use phf::phf_map;
+use unicase::UniCase;
+
+pub static MAP: phf::Map<UniCase<&'static str>, isize> = phf_map!(
+    UniCase::ascii("Foo") => 0,
+    UniCase::unicode("Bar") => 1,
+);
+
+fn main() {}