Added node-modules

node_modules/less/test/less/variables.less

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+@a: 2;
+@x: (@a * @a);
+@y: (@x + 1);
+@z: (@x * 2 + @y);
+@var: -1;
+
+.variables {
+  width: (@z + 1cm); // 14cm
+}
+
+@b: @a * 10;
+@c: #888;
+
+@fonts: "Trebuchet MS", Verdana, sans-serif;
+@f: @fonts;
+
+@quotes: "~" "~";
+@q: @quotes;
+@onePixel: 1px;
+
+.variables {
+  height: (@b + @x + 0px); // 24px
+  color: @c;
+  font-family: @f;
+  quotes: @q;
+}
+
+.redef {
+    @var: 0;
+	.inition {
+		@var: 4;
+		@var: 2;
+		three: @var;
+		@var: 3;
+	}
+	zero: @var;
+}
+
+.values {
+	minus-one: @var;
+    @a: 'Trebuchet';
+    @multi: 'A', B, C;
+    font-family: @a, @a, @a;
+    color: @c !important;
+    multi: something @multi, @a;
+}
+
+.variable-names {
+    @var: 'hello';
+    @name: 'var';
+    name: @@name;
+}
+
+.alpha {
+    @var: 42;
+    filter: alpha(opacity=@var);
+}
+
+.polluteMixin() {
+    @a: 'pollution';
+}
+.testPollution {
+    @a: 'no-pollution';
+    a: @a;
+	.polluteMixin();
+	a: @a;
+}
+
+.units {
+  width: @onePixel;
+  same-unit-as-previously: (@onePixel / @onePixel);
+  square-pixel-divided: (@onePixel * @onePixel / @onePixel);
+  odd-unit: unit((@onePixel * 4em / 2cm));
+  percentage: (10 * 50%);
+  pixels: (50px * 10);
+  conversion-metric-a: (20mm + 1cm);
+  conversion-metric-b: (1cm + 20mm);
+  conversion-imperial: (1in + 72pt + 6pc);
+  custom-unit: (42octocats * 10);
+  custom-unit-cancelling: (8cats * 9dogs / 4cats);
+  mix-units: (1px + 1em);
+  invalid-units: (1px * 1px);
+}