Refactoring for code clarity: Replaced this->m_xxx with m_xxx

as the m_ prefix already signifies a class local variable.

src/libslic3r/EdgeGrid.cpp

@@ -546,7 +546,7 @@ bool EdgeGrid::Grid::inside(const Point &pt_src)
 		return false;
 	coord_t ix = p(0) / m_resolution;
 	coord_t iy = p(1) / m_resolution;
-	if (ix >= this->m_cols || iy >= this->m_rows)
+	if (ix >= m_cols || iy >= m_rows)
 		return false;
 
 	size_t i_closest = (size_t)-1;