Tried to avoid glDeleteShader crash

rpcs3/Emu/GS/GL/GLFragmentProgram.cpp

@@ -535,8 +535,15 @@ void GLShaderProgram::Delete()
 	m_shader.clear();
 
 	if (m_id)
+	{
+		if (Emu.IsStopped())
+		{
+			ConLog.Warning("GLShaderProgram::Delete(): glDeleteShader(%d) avoided", m_id);
+		}
+		else
 		{
 			glDeleteShader(m_id);
+		}
 		m_id = 0;
 	}
 }

rpcs3/Emu/GS/GL/GLVertexProgram.cpp

@@ -664,8 +664,15 @@ void GLVertexProgram::Delete()
 	shader.clear();
 
 	if(id)
+	{
+		if (Emu.IsStopped())
+		{
+			ConLog.Warning("GLVertexProgram::Delete(): glDeleteShader(%d) avoided", id);
+		}
+		else
 		{
 			glDeleteShader(id);
+		}
 		id = 0;
 	}
 }