Support Kotlin value class properties in SpEL

This commit adds support for inlined Kotlin value
class properties in SpEL by leveraging Kotlin
reflection instead of Java reflection broken
by the mangled method name.

Closes gh-30468

spring-expression/src/test/kotlin/org/springframework/expression/spel/SpelReproKotlinTests.kt

@@ -55,6 +55,20 @@ class SpelReproKotlinTests {
 		assertThat(expr.getValue(context, Boolean::class.java)).isFalse()
 	}
 
+	@Test
+	fun `gh-30468 Unmangle Kotlin inlined class getter`() {
+		context.setVariable("something", Something(UUID(123), "name"))
+		val expr = parser.parseExpression("#something.id")
+		assertThat(expr.getValue(context, Int::class.java)).isEqualTo(123)
+	}
+
+	@Test
+	fun `gh-30468 Unmangle Kotlin inlined class setter`() {
+		context.setVariable("something", Something(UUID(123), "name"))
+		val expr = parser.parseExpression("#something.id = 456")
+		assertThat(expr.getValue(context, Int::class.java)).isEqualTo(456)
+	}
+
 	@Suppress("UNUSED_PARAMETER")
 	class Config {
 
@@ -71,4 +85,11 @@ class SpelReproKotlinTests {
 		}
 
 	}
+
+	@JvmInline value class UUID(val value: Int)
+
+	data class Something(
+		var id: UUID,
+		var name: String,
+	)
 }