Compile JavaRuntimeModel structures

Property definitions

nitc $ JavaRuntimeModel :: compile_rtmodel
	# Compile JavaRuntimeModel structures
	fun compile_rtmodel(compiler: JavaCompiler) do
		compile_rtclass(compiler)
		compile_rtmethod(compiler)
		compile_rtval(compiler)
	end
src/compiler/java_compiler.nit:1156,2--1161,4