fix Call[Static]<type>MethodA float argument marshalling

src/interpret.cpp

@@ -2823,7 +2823,7 @@ pushArguments(Thread* t, object this_, const char* spec,
       break;
 
     case 'F': {
-      pushFloat(t, arguments[index++].d);
+      pushFloat(t, arguments[index++].f);
     } break;
 
     default:

test/JNI.java

@@ -7,6 +7,18 @@ public class JNI {
     if (! v) throw new RuntimeException();
   }
 
+  private static float echo(float f) {
+    return f;
+  }
+
+  private static native float doEcho(float f);
+
+  private static double echo(double f) {
+    return f;
+  }
+
+  private static native double doEcho(double f);
+
   private static native double addDoubles
     (double a1, double a2, double a3, double a4, double a5, double a6,
      double a7, double a8, double a9, double a10, double a11, double a12,
@@ -40,5 +52,8 @@ public class JNI {
            (1.0f, 2.0d, 3.0f, 4.0d, 5.0f, 6.0f, 7.0f, 8.0f, 9.0f, 10.0f, 11.0f,
             12.0f, 13.0f, 14.0f, 15.0f, 16.0d, 17.0f, 18.0f, 19.0f, 20.0f)
            == 210.0d);
+
+    expect(doEcho(42.0f) == 42.0f);
+    expect(doEcho(42.0d) == 42.0d);
   }
 }

test/jni.cpp

@@ -37,6 +37,26 @@ Java_JNI_addMix
     + a14 + a15 + a16 + a17 + a18 + a19 + a20;
 }
 
+extern "C" JNIEXPORT jfloat JNICALL
+Java_JNI_doEcho__F(JNIEnv* e, jclass c, jfloat f)
+{
+  jvalue value;
+  value.f = f;
+  jvalue array[] = { value };
+  return e->CallStaticFloatMethodA
+    (c, e->GetStaticMethodID(c, "echo", "(F)F"), array);
+}
+
+extern "C" JNIEXPORT jdouble JNICALL
+Java_JNI_doEcho__D(JNIEnv* e, jclass c, jdouble f)
+{
+  jvalue value;
+  value.d = f;
+  jvalue array[] = { value };
+  return e->CallStaticDoubleMethodA
+    (c, e->GetStaticMethodID(c, "echo", "(D)D"), array);
+}
+
 extern "C" JNIEXPORT jobject JNICALL
 Java_Buffers_allocateNative(JNIEnv* e, jclass, jint capacity)
 {