This page tells how a given hash transforms each of the most useful WebGL methods and constants, and if a collision prevents a hash from being used:
g.createShader == g.cS
g.shaderSource == g.sS
g.compileShader != g.ce (You need to use the long form gl.compileShader)
g.createProgram == g.cP
g.attachShader == g.aS
g.linkProgram == g.lo
g.useProgram == g.ug
g.clearColor == g.co
g.clear == g.c
g.enable == g.e
g.getAttribLocation == g.gr
g.vertexAttrib1f != g.vA (You need to use the long form gl.vertexAttrib1f)
g.vertexAttrib2f != g.vA (You need to use the long form gl.vertexAttrib2f)
g.vertexAttrib3f != g.vA (You need to use the long form gl.vertexAttrib3f)
g.vertexAttrib4f != g.vA (You need to use the long form gl.vertexAttrib4f)
g.getUniformLocation == g.gf
g.uniform1f != g.um (You need to use the long form gl.uniform1f)
g.uniform2f != g.um (You need to use the long form gl.uniform2f)
g.uniform3f != g.um (You need to use the long form gl.uniform3f)
g.uniform4f != g.um (You need to use the long form gl.uniform4f)
g.createBuffer == g.cB
g.bindBuffer == g.bf
g.bufferData == g.bD
g.vertexAttribPointer == g.vA
g.enableVertexAttribArray == g.eV
g.drawArrays == g.dr
g.drawElements == g.de
g.FRAGMENT_SHADER == g.FN (or 35632)
g.VERTEX_SHADER != g.V_ (But you can replace it with 35633)
g.DEPTH_BUFFER_BIT != g.DB (But you can replace it with 256)
g.COLOR_BUFFER_BIT == g.CB (or 16384)
g.SRC_ALPHA != g.SP (But you can replace it with 770)
g.ONE_MINUS_SRC_ALPHA != g.ON (But you can replace it with 771)
g.STATIC_DRAW != g.S_ (But you can replace it with 35044)
g.ARRAY_BUFFER != g.AB (But you can replace it with 34962)
g.ELEMENT_ARRAY_BUFFER != g.ET (But you can replace it with 34963)
g.BUFFER_SIZE != g.B_ (But you can replace it with 34660)
g.BLEND != g.B (But you can replace it with 3042)
g.DEPTH_TEST == g.DT (or 2929)
g.BYTE != g.B (But you can replace it with 5120)
g.UNSIGNED_BYTE != g.UE (But you can replace it with 5121)
g.SHORT == g.S (or 5122)
g.UNSIGNED_SHORT != g.UE (But you can replace it with 5123)
g.INT != g.I (But you can replace it with 5124)
g.UNSIGNED_INT != g.UE (But you can replace it with 5125)
g.FLOAT == g.F (or 5126)
g.TEXTURE_2D != g.TE (But you can replace it with 3553)
g.TEXTURE_MAG_FILTER != g.TE (But you can replace it with 10240)
g.TEXTURE_MIN_FILTER != g.TE (But you can replace it with 10241)
g.TEXTURE_WRAP_S != g.TE (But you can replace it with 10242)
g.TEXTURE_WRAP_T != g.TE (But you can replace it with 10243)
g.NEAREST != g.NT (But you can replace it with 9728)
g.LINEAR == g.L (or 9729)
g.RGB != g.R (But you can replace it with 6407)
g.RGBA != g.R (But you can replace it with 6408)
g.REPEAT != g.R (But you can replace it with 10497)
g.CLAMP_TO_EDGE != g.CT (But you can replace it with 33071)
g.MIRRORED_REPEAT == g.ME (or 33648)
g.UNPACK_FLIP_Y_WEBGL != g.U_ (But you can replace it with 37440)
g.TEXTURE0 != g.TE (But you can replace it with 33984)
g.TEXTURE31 == g.TE (or 34015)