Implement Bitcast::I32ToP and PToI32 in more backends.

Author: sunfishcode

crates/c/src/lib.rs

@@ -2214,7 +2214,9 @@ impl Bindgen for FunctionBindgen<'_, '_> {
                         Bitcast::I64ToP64 | Bitcast::P64ToI64 => {
                             results.push(format!("{}", op));
                         }
-                        Bitcast::None => results.push(op.to_string()),
+                        Bitcast::I32ToP | Bitcast::PToI32 | Bitcast::None => {
+                            results.push(op.to_string())
+                        }
                     }
                 }
             }

crates/teavm-java/src/lib.rs

@@ -1343,7 +1343,7 @@ impl Bindgen for FunctionBindgen<'_, '_> {
                     Bitcast::P64ToI64 => format!("{op}"),
                     Bitcast::PToP64 => format!("(long) ({op})"),
                     Bitcast::P64ToP => format!("(int) ({op})"),
-                    Bitcast::None => op.to_owned(),
+                    Bitcast::I32ToP | Bitcast::PToI32 | Bitcast::None => op.to_owned(),
                 }))
             }